Na Hang dam the facts

Working water level 120m
Dead water level 90m
Volume of the lake 2.2Bm3
Generator capacity 342MW
Max dam height 125.7m
Max dam width 261m
Total dam volume 5Mm3 (4Mm3 rock core and Imm3 concrete surfacing)
Power generated annually 1.3BkWh
Total earth moving 12Mm3 in which 4Mm3 is of rock excavation
Total capital invested US$400M